Leaf-separator for springs.



UNITED STATES ernnir OFFICE.

:om: H. s'rEvnNsoN AND resumen xNowLsou, 'or ANN aseos..` MICHIGAN; SAIDsrEvsNsoIv estenos 'ro am xNowLsoN.

LEAF-SEPARATOB FOR SPRINGS.

Speelcxtion o! Letters Patent.

Patented June 8, 1915.

T0 all whom it may concern:

Be it known that we, JOHN H. S'rnvnNsoN and Fal-:Demon: KNowIsoN,subjects of the King of Great Britain, residing at Ann Arbor, county oflVashtenaw, State of lilichigan, have invented a certain new and usefulImprovement in a Leaf-qepurator for Springs, and declare the followingto be a full, clear, and exact description of the same. such aswillenable others skilled in the art to which it prtains to make and, usethe same. reference ing had to the accompanying drawings, which form apart o this specification.

Our invention relates to apparatus for lubricating leaf springs, and theobject of our improvements is to provide means for properly placing alubricating material between the leaves of springs, especially thoseused for. vehicles.

We accomplish this object by the apparatus hereinafter described.

In the accompanying drawings,-Figure l, is a perspective view of a partof a leaf spring and an apparatus embodying our invention separatingleaves of said sprin so that lubricating material may be place betweenthem and properly distributed. Fig. 2, is a detail View of a portion ofthe apparatns for separating the loaves of the spring,

and Fig. 3, is a view of a portio'n of the a paratus shown in Fig.'2,*looking from the right of the latter figure.

A, is a portion of a leaf spring made up of a plurality of leavesindicated by a, a, a.

B and C are side pieces rigidly connected by the cross piece D.

B, is a sliding cross head sleeved upon the cross piece D so as toreciprocate thereon.

b, is a sleeve surrounding the cross iieoe I) and rigidly joined to thecross head to steady the latter.'

E. is a screw threaded rod, its end protruding into an aperture in thecross head B, in which it is secured so as to permit it to rotate bymeans of a piu I extending through the material of the cross head B andinto a groove in the end of the rod E,` as shown in dotted lines in Fig.3. The rod E extends thmugh an aperture in the side piece (l, its screwthreads engaging screw threads in said aperture.

may, be

F, is a handle by which the rotated.

G, 1s a spur, or knife edge, supported by the cross head B at its lowerend and on the inner side thereof, the spur G is of the shape shown inFigs. 2 and 3 presenting a knife edge at its outer extremity andincreasing in thickness toward its supporting cross head.

H. is a s mr or knife similar to the spur (i extending Inward from thelower end of the side piece B1.

The method of using our improved apparutus is as follows The cross headAB is adjusted along the cross bar D to the width of the spring that itis desired to lubricate. the spring is then placed between the spurs H.G. so that the edge comes between two of the leaves of said spring. Therod E. is then turned by the handle F forcing said spurs between saidleaves and separa-ting the leaves, a lubricant may then be insertedbe-"` tween the separated leaves and properly disarm of the yoke, awedge on the other. and

means for advancing one of the wedges and maintaining it in advancedposition.

2. In an apparatus fo'r separating the leaves of springs, thecombination of a pair of side pieces. a cross piece connecting themtogether and spacing them, a spur on one. of the side pieces, a crosshead. a sleeve attached to the cross head and slidabl)v mounted ou saidcross iiece, a spur on the cross head opposite said first mentioned spurand in horizontal alinelueut therewith. and a screw fastened to thecross head and passing through a threaded aperture in the side piecewithout the spur.

3. A device for spreading the leaves of vehicle springs` comprisingsupporting means adapt-od to bridge a spring two oppositelv positionedwedge parts thereon adapted t'o enter lwtwoeu tho leaves of springs fromoptioned wedge parts adapted to enter between ,the leaves of springsfrom opposite sides thereof. and means for forcibly actuating the wedgeparts to cause the same to spread the laves, and for retaining the wedgeparts in adjusted position, suistantieily as described.

A device for spreading the leaves of springs Comprising two oppositolyposisitionedl wedge parte adapted to enter be" tween the. leaves ofsprings from opposite sides thereof, and ineens :for niecimnicallyadjusting the wedges to fixed relative positions to retain the leaves inspread relation, substantially as described.

(5. A device for spiefidingtl'ie leaves of vehicle springs comprisingtwo oppositely positioned Wedge parts adapted to enter be tween theleaves of springs from opposite sides lheieo and carrying means for said15 wedge'pa-rts adapted to bridge e spring and to maintain the Wedgeparts in desired spaced relation.

'In testimony whereof, We sign this speciiezation in the presence of twoWitnesses.

JOHN H. STEVENSON. FREDERCK KNOVVLSON.

lVitnesses Tiios. D. KifiARNEY, Losn'ifo KAHNBACH

